Merge pull request #754 from xvhuan/perf/admin-core-large-dataset

perf(admin): 优化后台大数据场景加载性能（仪表盘/用户/账号/Ops）

backend/internal/repository/user_repo.go

@@ -243,21 +243,24 @@ func (r *userRepository) ListWithFilters(ctx context.Context, params pagination.
 		userMap[u.ID] = &outUsers[len(outUsers)-1]
 	}
 
-	// Batch load active subscriptions with groups to avoid N+1.
-	subs, err := r.client.UserSubscription.Query().
-		Where(
-			usersubscription.UserIDIn(userIDs...),
-			usersubscription.StatusEQ(service.SubscriptionStatusActive),
-		).
-		WithGroup().
-		All(ctx)
-	if err != nil {
-		return nil, nil, err
-	}
+	shouldLoadSubscriptions := filters.IncludeSubscriptions == nil || *filters.IncludeSubscriptions
+	if shouldLoadSubscriptions {
+		// Batch load active subscriptions with groups to avoid N+1.
+		subs, err := r.client.UserSubscription.Query().
+			Where(
+				usersubscription.UserIDIn(userIDs...),
+				usersubscription.StatusEQ(service.SubscriptionStatusActive),
+			).
+			WithGroup().
+			All(ctx)
+		if err != nil {
+			return nil, nil, err
+		}
 
-	for i := range subs {
-		if u, ok := userMap[subs[i].UserID]; ok {
-			u.Subscriptions = append(u.Subscriptions, *userSubscriptionEntityToService(subs[i]))
+		for i := range subs {
+			if u, ok := userMap[subs[i].UserID]; ok {
+				u.Subscriptions = append(u.Subscriptions, *userSubscriptionEntityToService(subs[i]))
+			}
 		}
 	}